package com.itheima.controller;


import com.itheima.pojo.Result;
import com.itheima.pojo.User;
import com.itheima.service.UserService;
import com.itheima.utils.JwtUtil;
import com.itheima.utils.Md5Util;
import com.itheima.utils.ThreadLocalUtil;
import jakarta.validation.constraints.Pattern;
import org.hibernate.validator.constraints.URL;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Validated
public class UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    @Autowired
    private ConfigurationPropertiesAutoConfiguration configurationPropertiesAutoConfiguration;

    @PostMapping("/register")
    public Result register(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$") String password){
        //查询用户名是否被占用
        User u = userService.findByUserName(username);
        //注册

        if (u == null) {
            userService.register(username, password);
            return Result.success();
        } else {
            return Result.error("用户名已被占用");
        }
    }
    @PostMapping("/login")
    public Result<String> login(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$") String password){
        User u = userService.findByUserName(username);
        if (u == null) {
            return Result.error("用户名不存在");
        } else {
            if (Md5Util.getMD5String(password).equals(u.getPassword())) {
                Map<String, Object> claims = new HashMap<>();
                claims.put("id", u.getId());
                claims.put("username", u.getUsername());
                String token = JwtUtil.genToken(claims);
                //把token存储到Redis中
                ValueOperations<String,String> operaions = stringRedisTemplate.opsForValue();
                operaions.set(token,token,1,TimeUnit.HOURS);
                return Result.success(token);
            } else {
                return Result.error("密码错误");
            }

        }
    }

    @GetMapping("/userInfo")
    public Result<User> userInfo(@RequestHeader(name = "Authorization") String token){
//        Map<String, Object> map = JwtUtil.parseToken(token);
//        String username = (String) map.get("username");
        Map<String, Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User user = userService.findByUserName(username);
        return Result.success(user);
    }

    @PutMapping("/update")
    public Result update(@RequestBody @Validated User user){
        userService.update(user);
        return Result.success();
    }

    @PatchMapping("/updateAvatar")
    public Result updateAvatar(@RequestParam  String avatarUrl){
        userService.updateAvatar(avatarUrl);
        return Result.success();
    }


    @PatchMapping("updatePwd")
    public Result updatePwd(@RequestBody Map<String, String> params,@RequestHeader("Authorization") String token){
        String oldPwd = params.get("old_pwd");
        String newPwd = params.get("new_pwd");
        String rePwd = params.get("re_pwd");
        if (!StringUtils.hasLength(oldPwd)|| !StringUtils.hasLength(newPwd)|| !StringUtils.hasLength(rePwd) ) {
            return Result.error("缺少参数");
        }
        Map<String ,Object > map =   ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User loginUser = userService.findByUserName(username);
        if (!loginUser.getPassword().equals(Md5Util.getMD5String(oldPwd))){
            return Result.error("原密码输入不正确");
        }

        if (!rePwd.equals(newPwd)){
            return Result.error("两次密码不一致");
        }


        userService.updatePwd(newPwd);
        //删除redis中的对应token
        ValueOperations<String,String> operations = stringRedisTemplate.opsForValue();
        operations.getOperations().delete(token);
        return Result.success();
    }


}
